<!-- 底部路由的主页（首页） -->
<template>
  <div class="msite">
    <!--首页头部-->
    <HeaderTop :title="address.name">
      <router-link class="header_search" slot="left" to="/search">
        <i class="iconfont icon-sousuo"></i>
      </router-link>
      <router-link class="header_login" slot="right" :to="userInfo._id ? '/userInfo' : '/login'">
        <span class="header_login_text" v-if="!userInfo._id">登录|注册</span>
        <span class="header_login_text" v-else>
          <i class="iconfont icon-person"></i>
        </span>
      </router-link>
    </HeaderTop>
    <!--首页导航-轮播图-->
    <nav class="msite_nav">
      <div class="swiper-container" v-if="categorys.length">
        <div class="swiper-wrapper">
          <div class="swiper-slide" v-for="(categorys, index) in categorysArr" :key="index">
            <a href="javascript:" class="link_to_food" v-for="(category, index) in categorys" :key="index">
              <div class="food_container">
                <img :src="baseImgUrl + category.image_url">
              </div>
              <span>{{category.title}}</span>
            </a>
          </div>
        </div>
        <!-- Add Pagination -->
        <div class="swiper-pagination"></div>
      </div>
      <div class="swiper-container" v-else>
        <img src="./images/msite_back.svg" alt="bgImg">
      </div>
    </nav>
    <!--首页附近商家-->
    <div class="msite_shop_list">
      <div class="shop_header">
        <i class="iconfont icon-xuanxiang"></i>
        <span class="shop_header_title">附近商家</span>
      </div>
      <ShopList/>
    </div>
  </div>
</template>

<script>
import {mapState} from 'vuex'
import HeaderTop from '../../components/HeaderTop/HeaderTop.vue'
import ShopList from '../../components/ShopList/ShopList.vue'
import 'swiper/swiper-bundle.css'
import Swiper, { Pagination, Navigation } from 'swiper'
Swiper.use([Pagination, Navigation])

export default {
  data () {
    return {
      baseImgUrl: 'https://fuss10.elemecdn.com'
    }
  },
  mounted () {
    this.$store.dispatch('getCategorys')
    this.$store.dispatch('getShops')
  },
  computed: {
    ...mapState(['address', 'categorys', 'userInfo']),
    categorysArr () {
      const {categorys} = this
      const resArr = []
      let minArr = []
      categorys.forEach(e => {
        if (minArr.length === 8) {
          minArr = []
        }
        if (minArr.length === 0) {
          resArr.push(minArr)
        }
        minArr.push(e)
      })

      return resArr
    }
  },
  watch: {
    categorys () {
      this.$nextTick(() => {
        /* eslint-disable no-new */
        new Swiper('.swiper-container', {
          loop: true, // 循环模式选项
          // 如果需要分页器
          pagination: {
            el: '.swiper-pagination',
            clickable: true
          }
        })
      })
    }
  },
  components: {
    HeaderTop,
    ShopList
  }
}
</script>

<style lang='stylus' rel='stylesheet/stylus' scoped>
  @import"../../common/stylus/mixins.styl"
  .msite  //首页
      width 100%
      .header
        background-color #02a774
        position fixed
        z-index 100
        left 0
        top 0
        width 100%
        height 45px
        .header_search
          position absolute
          left 15px
          top 50%
          transform translateY(-50%)
          width 10%
          height 50%
          .icon-sousuo
            font-size 25px
            color #fff
        .header_title
          position absolute
          top 50%
          left 50%
          transform translate(-50%, -50%)
          width 50%
          color #fff
          text-align center
          .header_title_text
            font-size 20px
            color #fff
            display block
        .header_login
          font-size 14px
          color #fff
          position absolute
          right 15px
          top 50%
          transform translateY(-50%)
          .header_login_text
            color #fff
      .msite_nav
        bottom-border-1px(#e4e4e4)
        margin-top 45px
        height 200px
        background #fff
        .swiper-container
          width 100%
          height 100%
          .swiper-wrapper
            width 100%
            height 100%
            .swiper-slide
              display flex
              justify-content center
              align-items flex-start
              flex-wrap wrap
              .link_to_food
                width 25%
                .food_container
                  display block
                  width 100%
                  text-align center
                  padding-bottom 10px
                  font-size 0
                  img
                    display inline-block
                    width 50px
                    height 50px
                span
                  display block
                  width 100%
                  text-align center
                  font-size 13px
                  color #666
          .swiper-pagination
            >span.swiper-pagination-bullet-active
              background #02a774
      .msite_shop_list
        top-border-1px(#e4e4e4)
        margin-top 10px
        background #fff
        .shop_header
          padding 10px 10px 0
          .shop_icon
            margin-left 5px
            color #999
          .shop_header_title
            color #999
            font-size 14px
            line-height 20px
</style>
